然而实验发现第一主成分未必是算法初始化的最佳选择。
They are all initialized by the first principal component for the close relation between principal curves and the principal components.
用南方涛动指数(SOI)的第一主成分表示年涛动强度。
The first principal component of the Southern Oscillation Index (SOI) is used as the intensity of annual SO.
建立了基于层次一主成分分析法的高等级公路安全综合评价模型，并给出评价案例。
The comprehensive evaluation model based on AHP and primary component analysis has been set up to evaluate the traffic safety and a relevant appraisal example is given in the paper.
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